Finding the Third Proportional to 359,585,340 and 789,162,188

Step by Step Solution

1. Step 1: Write the proportion equation
   359,585,340 : 789,162,188 = 789,162,188 : x
2. Step 2: Convert to fraction form
   359,585,340/789,162,188 = 789,162,188/x
3. Step 3: Cross multiply
   359,585,340x = 789,162,188 × 789,162,188
4. Step 4: Simplify right side
   359,585,340x = 622,776,958,968,947,328
5. Step 5: Solve for x
   x = 622,776,958,968,947,328/359,585,340
6. Step 6: Final answer
   x = 1,731,930,892.87